DNA Structure

dna structure  A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits Each of these chains is known as a DNA chain, or a DNA Describe the structure of DNA; Describe how eukaryotic and prokaryotic DNA is arranged in the cell In the 1950s, Francis Crick and James Watson

The structure of DNA is that of a double helix Similar to a spiral staircase, DNA is twisted and coiled so that it can be packed into our DNA has a regular structure It's orientation, width, width between nucleotides, length and number of nucleotides per helical turn is constant All of these

This means that each of the two strands in double-stranded DNA acts as a template to produce two new strands Replication relies on complementary base pairing, OVERVIEW In this activity, students build a paper model of DNA and use their model to explore key structural features of the DNA double helix